I don't know if this is invented or not, but i still didnot find car companies announcing for that. Anyway, my idea is shortly assists cars which takes the second lane to make U turn.where they give left sign doesn't mean they're making a U turn. the left and right lights would be electronic where the driver when he suddenly decides to make a U turn he uses the orientation arm then he click on a button on the same arm to clraify for others that he's making a U turn not left turn. this would solve prevent accident from the car on his left side if they are planning to go left. it could be used for drivers following him while they're lost or don't know their way.

Just an Idea :)

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